Makita EN5550SH Manuel D'emploi Et De Sécurité page 18

REPLACEMENT OF ENGINE OIL
Deteriorated engine oil will shorten the life of the sliding and rotating parts to a great extent. Be sure to check the period and quantity of
replacement.
DANGER: In general, the engine main unit and engine oil still remain hot just after the engine is stopped. In replacement of oil, make
sure that the engine main unit and engine oil are sufficiently cooled down. Otherwise, there may remain a risk of scald.
Allow sufficient time after stopping engine for the engine oil to return to the oil tank to ensure accurate reading of the oil
level indicator.
NOTE: If the oil filled above the limit, it may become dirty or may catch fire with white smoke.
Interval of replacement: After first 20 operating hours, followed by every 50 operating hours
Recommended oil: SAE10W-30 oil of API Classification SF Class or higher (4-stroke engine oil for automobile)
In replacement, perform the following procedure.
1) Make sure that the fuel tank cap is tightened securely.
2) Put large container (pan, etc.) under drain hole.
3) Remove drain bolt and then remove oil cap to drain out oil from drain hole. At
this time, be sure not to mislay drain bolt's gasket, or to dirty any of the removed
components.
4) Once all the oil has been drained, combine gasket and drain bolt, and tightly
secure drain bolt, so that it will not loosen and cause leaks.
* Use cloth to fully wipe off any oil attached to bolt and equipment.
Alternative draining method
Remove oil cap, tilt pole hedge trimmer toward oil filler hole, and drain out oil.
Collect oil in container.
Fuel tank cap
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Oil cap
Oil cap
Drain hole
Gasket
Drain bolt